Refactor ComponentKey to an interface

Author: pcastornii

mvvm4fx-core/pom.xml

@@ -18,10 +18,6 @@
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
         </dependency>
-        <dependency>
-            <groupId>com.techsenger.toolkit</groupId>
-            <artifactId>toolkit-core</artifactId>
-        </dependency>
         <dependency>
             <groupId>org.openjfx</groupId>
             <artifactId>javafx-base</artifactId>

mvvm4fx-core/src/main/java/com/techsenger/mvvm4fx/core/ComponentKey.java

@@ -16,15 +16,14 @@
 
 package com.techsenger.mvvm4fx.core;
 
-import com.techsenger.toolkit.core.Key;
-
 /**
+ * Keys are used to identify components. Component keys should be located in the API and be accessible to other
+ * components. At the same time, the component itself can be deeply hidden in the implementation packages.
+ *
+ * <p>Classes implementing this interface should override toString with a meaningful representation.
  *
  * @author Pavel Castornii
  */
-public class ComponentKey extends Key {
+public interface ComponentKey {
 
-    public ComponentKey(String text) {
-        super(text);
-    }
 }

mvvm4fx-core/src/main/java/module-info.java

@@ -15,7 +15,6 @@
  */
 
 module com.techsenger.mvvm4fx.core {
-    requires com.techsenger.toolkit.core;
     requires org.slf4j;
     requires javafx.base;
     requires javafx.graphics;

mvvm4fx-sampler/src/main/java/com/techsenger/mvvm4fx/sampler/DemoKey.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2024-2025 Pavel Castornii.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.techsenger.mvvm4fx.sampler;
+
+import com.techsenger.mvvm4fx.core.ComponentKey;
+
+/**
+ *
+ * @author Pavel Castornii
+ */
+public class DemoKey implements ComponentKey {
+
+    private final String name;
+
+    public DemoKey(String name) {
+        this.name = name;
+    }
+
+    @Override
+    public String toString() {
+        return name;
+    }
+}

mvvm4fx-sampler/src/main/java/com/techsenger/mvvm4fx/sampler/ComponentKeys.java mvvm4fx-sampler/src/main/java/com/techsenger/mvvm4fx/sampler/DemoKeys.java

@@ -19,16 +19,14 @@
 import com.techsenger.mvvm4fx.core.ComponentKey;
 
 /**
- * Component keys should be located in the API and be accessible to other components. At the same time, the
- * component itself can be deeply hidden in the implementation packages.
  *
  * @author Pavel Castornii
  */
-public final class ComponentKeys {
+public final class DemoKeys {
 
-    public static final ComponentKey PERSON = new ComponentKey("Person component");
+    public static final ComponentKey PERSON = new DemoKey("Person component");
 
-    private ComponentKeys() {
+    private DemoKeys() {
         //empty
     }
 }

mvvm4fx-sampler/src/main/java/com/techsenger/mvvm4fx/sampler/PersonViewModel.java

@@ -51,7 +51,7 @@ public PersonViewModel() {
 
     @Override
     public ComponentKey getKey() {
-        return ComponentKeys.PERSON;
+        return DemoKeys.PERSON;
     }
 
     ObservableList<Person> getPersons() {